Together with a Table of the True Equation of Natural Dayes. Drawn up Chiefly for the Use of the Gentry, in Order to their more true Adjusting, and right Managing of Pendulum Clocks, and Watches, first edition, lacking A1 (advertisment with imprimatur on verso) but with advertisement leaf at end, lacking folding table of equations but supplied in good facsimile, cropped with loss of last line of imprint at foot of title, soiled, title with two small wormholes and defective at fore-edge affecting border (repaired), modern calf, spine titled in gilt, [Baillie p.115; Not in Clockmakers' or Tardy], small 8vo, for Joseph Watts, [1686]. *** Rare; one of the earliest works with practical information on the pendulum clock and the variation in seconds of a natural day from 24 hours of mean time. Smith, a clock-maker, had previously published Horological Dialogues in 1675, the first book on clocks and watches to be published in England.
Together with a Table of the True Equation of Natural Dayes. Drawn up Chiefly for the Use of the Gentry, in Order to their more true Adjusting, and right Managing of Pendulum Clocks, and Watches, first edition, lacking A1 (advertisment with imprimatur on verso) but with advertisement leaf at end, lacking folding table of equations but supplied in good facsimile, cropped with loss of last line of imprint at foot of title, soiled, title with two small wormholes and defective at fore-edge affecting border (repaired), modern calf, spine titled in gilt, [Baillie p.115; Not in Clockmakers' or Tardy], small 8vo, for Joseph Watts, [1686]. *** Rare; one of the earliest works with practical information on the pendulum clock and the variation in seconds of a natural day from 24 hours of mean time. Smith, a clock-maker, had previously published Horological Dialogues in 1675, the first book on clocks and watches to be published in England.
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.jpg "Source: Christie's")
.jpg "Source: Christie's")
